[emacs] make private function non interactive
[emacs] make private function non interactive

This function shouldn't be interactive as it's not meant to be used
directly by the user

Signed-off-by: Rudi Grinberg <4c46c202a3b8207ad5740134b125aae40c6c67a8@gmail.com>

rgrinberg/merlin,dra27/merlin,rgrinberg/merlin,dra27/merlin,the-lambda-church/merlin,rgrinberg/merlin,dra27/merlin,the-lambda-church/merlin,ocaml/merlin,the-lambda-church/merlin,ocaml/merlin,rgrinberg/merlin,ocaml/merlin,dra27/merlin,ocaml/merlin